CDT sees the enormity of Google's proposed position as well as anyone:
Google is in many ways taking on the role of the public library as a gateway to information, only on a much larger and more comprehensive scale. Providing such breadth of electronic access to so many published books will give Google an unparalleled view of people’s reading and information-seeking habits. By hosting the book search service and closely managing user access, Google will have the capability to collect data about individual users’ searches, preview pages visited, books purchased, and even time spent reading particular pages. ... Google will hold a massive centralized repository of books and of information about how people access and read books online.
And Google will not only be the world's biggest library but also the dominant purveyor of search and behavioral advertising. That's a scary combination.
In the absence of binding limits on what Google can do with the data it collects about readers through the New Services, Google would remain free to combine that data with other data that Google collects, adding a rich and personal dimension to the profiles that Google already maintains about individuals’ searching and Web surfing habits. Reading habits add an intimate element to profiles that may already be attractive for a variety of uses ... As valuable as the New Services will be, without action by this Court to protect reader privacy, they have the potential to transform the typical library experience from one of anonymity and privacy to one of data collection and tracking.
Thus, CDT calls on the court to mandate and supervise a number of additional privacy requirements: